Brake band



Apwifi 1 1924. 3,488,717

A. H. SWEET BRAKE BAND Filed Feb. 8 1923 in U6/1t07; A Zvz'n if. Sweet,

Attorney.

Patented Apr. 1, 1924.

UNITED STATES PATENT OFFICE.

ALVIN H. SWEET, OF LOS ANGELES, CALIFORNIA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, T TITLE GUARANTEE AND TRUST COMPANY, TRUSTEE, 015 LOS AN GELES, CALIFORNIA.

BRAKE BAND.

Application filed February 8, 1923. Serial No. 617,771.

To aZZ whom it may concern:

Be it known that I, ALVIN H. Swnn'r, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Brake Band, of which the following is a specification.

My invention relates to improvements in brake bands and particularly when they are housed or relatively inaccessible for relining. The objects of my improvement are, first, to provide a sectional lining that may be removed from or applied to a brake band without disassembling or removing it from its normal position; and, second, to afford facilities for renewing only a portion of the lining and for arranging ortions according to their relative condit1on of wear.

Other objects and advantages will a pear 2o hereinafter, and while I show herewit and will describe a preferred form of construction, I desire to be understood that I do not limit myself to such'preferred form, but that various changes and adaptations may be made therein without departing from the spirit of my invention as hereinafter claimed.

These objects are attained by the construction illustrated in the accompanying $0 drawing, in which I Figure 1 is a perspective view of my 1n iplroved brake band, and Fi re 2 1s a simir enlarged view of one o the lining sections.

38 Similar numerals refer to similar parts throughout both views.

The brake band strap 1 may be of any usual and suitable form except that, where the width of end clips 2 is the same or nearso 1y equal to the w1dth of the strap, the

inner edges of the latter should be chamfered ad acent the strap. This is to expose the edges of the strap near the ends to afford facilities for engagement by the lugs 48 of the lining sections.

The lining, revious to assembly, comprises a plurality of interlocking sections formed substantially as shown in Fig. 2. Of these the backers 3 are preferably made of sheet steel with integra lugs 4 and 5. The former of these extends outwardly from the back, and is flangedat its outer end for engaging the edges of the strapi Lug 5 is formed in the plane of the bac and of a length suitable for turning over the edge of the strap in assembling the brake band so as to correspond in shape to the opposite and previously formed lug 4. The folded ends 6 and 7 of the backers are adapted for engaging adjacent sections of the lining. The backers also have clinch points 8 pressed inwardly from the material of which they are formed, and friction material 9 is attached to the backers by means of these points as indicated in Fig. 1 at 10.

Flangeson lugs 4 and 5 are often superfluous and may be omitted. In such cases, after assembling, the lugs merely extend straight out from the backers, and serve only to keep the sections in place so far as movement parallel to the axis is concerned.

The lining sections may be added one at a time in assembling, or to replace defective sections at an time. They are slip ed into the strap. si eways, parallel to t e axis. Worn sections of lining can be removed and placed in other positions if desired without disturbing the remainin portions of the lining. After placing, t e flat lugs 5 are turned outwar l and flanged over the strap if desired.

The construction andoperation of the invention will be clear from the foregoing description. It will also be obvious that the lining is flexible and otherwise perfectly adapted for braking lpurposes. In a previous app lcatlon filed July 27, 1922, Serial Number 577935, which has matured into a PatentNumber 1460118, June 26, 1923, and in companion applications filed coincidentally with this, I have shown somewhat similar brake band construction,

plurality of sections ada ted by transverse sliding for mutual hooke enga ement and for on ging the edge of a rake strap for al gnment therewith.

3. A brake lining com'prisi a plurality of sections adapted for mutua engagement and for engaging the edge of a brake strap I by transverse sliding; each of said sections gaging the edge of said band for alignment having a lug adapted for bending around therewith by transverse sliding; each of said the other edge of said strap for maintainsections having a lug adapted for bending 1 ing alignment therewith. around the other edge of said strap for 5 4. In combination, a brake band; a linmaintaining alignment therewith.

ing comprising a plurality of sections adapted for mutual engagement and for en- ALVIN H. SWEET. 

